Blog
Web performance and privacy,in plain language.
No jargon, no buzzwords. What the numbers really mean and how to make them better, from the people building fastmon.
4 min read
An outage, and what we built in the week after.
On October 10, a single crashed proxy stopped our data intake. How we have since made every station on the path of your data redundant, without adding much new technology to do it.
Lucas Röhrs
Co-Founder
5 min read
Your checkout is the most expensive page in your store. And the one your average hides.
Most stores measure load time as a single number across everything. That is exactly what buries the step where money is involved. Why you should measure cart, checkout and confirmation separately, and why fastmon has no abandonment rate.
Kamil Adrian Czujowski
Co-Founder
7 min read
Ask your AI about your web performance: fastmon now has an MCP server
Connect Claude, Claude Code or Cursor to fastmon and ask for your field data instead of clicking it together in the dashboard. Nineteen read-only tools, OAuth instead of keys, and an honest note about who actually receives your data.
Kamil Adrian Czujowski
Co-Founder
16 min read
Real user monitoring tools in 2026: eight vendors, honestly compared
Eight real user monitoring tools compared: prices, hosting and what lands on the visitor's device. List prices checked 2 September 2026, with an honest verdict.
Kamil Adrian Czujowski
Co-Founder
5 min read
Your page takes 800 ms to the first byte. Doing what, exactly?
TTFB is a single number for everything that happens before the first byte. How to split it into phases with one response header, why search and key-value stores deserve phases of their own, and how Early Hints make your TTFB look better than it is.
Kamil Adrian Czujowski
Co-Founder
4 min read
Every deploy can wreck your performance. Would you notice?
Regressions almost always ride in on a deploy. Why the average hides them, how a release marker from your CI/CD makes them visible, and what you actually compare at the p75.
Kamil Adrian Czujowski
Co-Founder
6 min read
Browser cache, CDN cache, origin cache: what do they mean?
When someone says: just turn on the cache. Which one? There are three, they sit behind one another, and between the first and the last one lies half a second of waiting for your visitors.
Kamil Adrian Czujowski
Co-Founder
4 min read
LCP, FCP, TTFB: just buzzwords to you?
Five acronyms, translated into plain language: what your visitors actually feel when these numbers are bad, and why Google takes them seriously.
Kamil Adrian Czujowski
Co-Founder
4 min read
Why we bet on Europe. And what that actually means.
No Cloudflare, no AWS, no GCP: why we took the less convenient path, and what it concretely changes for your data.
Kamil Adrian Czujowski
Co-Founder